GAC (Global Assembly Cache)

GAC stands for Global Assembly Cache and Global Assembly Cache. The role is to store some public assemblies that are used by many programs. For example, System. Data and System. Windows. Forms. In this way, many programs can obtain the Assembly from the GAC without copying all the Assembly to the execution directory of the application. For example, if there is no GAC, it is inevitable that the directory of each WinForm program should be from C: \ WINDOWS \ Microsoft. NET \ Framework \ v1.0.3705 copy a copy of the System. windows. forms. dll, which is obviously easier to use from the GAC, but also conducive to the Assembly upgrade and version control.

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